The above prices are for single kits, they also offer bulk discounts for 3 or more kits:

USA:

UK:

Italy:

If you’re interested in the Prolon box (Fast Mimicking Diet), and would like to learn about making your own DIY version, I’ve written a further post about this here. In particular, check the two bullet points at the end of the first section, where I’ve provided links to get the full macronutrient and calorie counts for each of the 5 days.